How to use AJAX Validator Callout Extender ?

Posted by Ranjeet_8 under ASP.NET AJAX category on 1/1/2013 | Points: 40 | Views : 1842

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Display validation error msg in popup


<%-- ADD / REPLACE YOUR AJAX ASSEMBLY HERE --%>
<%@ Register Assembly="AjaxControlToolkit" Namespace="AjaxControlToolkit" TagPrefix="cc1" %>
<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
<html xmlns="http://www.w3.org/1999/xhtml">
<head runat="server">
    <title>Testing page</title>
</head>
<body>
    <form id="form1" runat="server">
    <asp:ScriptManager ID="ScriptManager1" runat="server">
    </asp:ScriptManager>
    <asp:TextBox ID="TextBox1" runat="server"></asp:TextBox><br />
    <br />
    <asp:RequiredFieldValidator ID="RequiredFieldValidator1" runat="server"
     ErrorMessage="Text field can't be left blank!!!"
     SetFocusOnError="true" ControlToValidate="TextBox1" ValidationGroup="A">
     <cc1:ValidatorCalloutExtender ID="ValidatorCalloutExtender1" runat="server"
     TargetControlID="RequiredFieldValidator1">
     </cc1:ValidatorCalloutExtender>
    </asp:RequiredFieldValidator>
    <asp:Button ID="Button1" runat="server" Text="Submit blank" ValidationGroup="A" />
    </form>
</body>
</html>

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